CN106461520B - Material Testing Machine - Google Patents
Material Testing Machine Download PDFInfo
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- CN106461520B CN106461520B CN201480078853.5A CN201480078853A CN106461520B CN 106461520 B CN106461520 B CN 106461520B CN 201480078853 A CN201480078853 A CN 201480078853A CN 106461520 B CN106461520 B CN 106461520B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/0202—Control of the test
- G01N2203/0208—Specific programs of loading, e.g. incremental loading or pre-loading
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0254—Biaxial, the forces being applied along two normal axes of the specimen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0272—Cruciform specimens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Seat component (31) relative to the state of the 1st sliding component (21) or the movement of the 2nd sliding component (22) can be kept.By making screw (39) to rotating the face (A) of the 1st sliding component (21) or the 2nd sliding component (22) with the direction to become larger the distance between the face (B) of seat component (31) (d), it is mobile to the direction for making the distance between fixture (25) become larger to make fixture (25), and pre-tensioning is applied to test film.When clearance (loosening) of the transmission system of the power in elimination self-supporting portion to each fixture (25), start biaxial tension-compression strength.
Description
Technical field
Apply drawing force on the biaxially oriented to cross one another the present invention relates to a kind of pair of test film and executes the material of test
Expect testing machine.
Background technique
Such testing of materials is also called biaxial tension-compression strength, for example, holding to metal plate measurement intensity
Row.As such Material Testing Machine, disclose in patent document 1 such a on being disposed in mutually orthogonal direction
It is equipped with the biaxial tension-compression strength machine of a pair of of test film clamp portion on two guide rails in a manner of it can move respectively.
Figure 15 is to indicate that the twin shaft for applying test force to test film 100 in such previous Material Testing Machine is drawn
Stretch the perspective view of mechanism.
Biaxial stretch-formed mechanism in the Material Testing Machine includes being disposed in mutually orthogonal direction on the surface of substrate 90
On the 1st guide rail 91 and the 2nd guide rail 92.On the 1st guide rail 91, a pair of 1st mobile member is equipped in a manner of it can slide
93.The 1st mobile member 93 of a pair by being guided by the 1st guide rail 91, so as to along the 1st guide rail 91 to close to each other and remote
From direction it is mobile.In addition, the 1st mobile member 93 of a pair respectively includes the fixture 95 for holding test film 100.Another party
Face is equipped with a pair of 2nd mobile member 94 (one is illustrated only in Figure 15) on the 2nd guide rail 92 in a manner of it can slide.
The 2nd mobile member 94 of a pair by being guided by the 2nd guide rail 92, so as to along the 2nd guide rail 92 to close to each other and separate
Direction it is mobile.In addition, the 2nd mobile member 94 of a pair respectively includes the fixture 96 for holding test film 100.Support the 1st
The substrate 90 of guide rail 91 and the 2nd guide rail is disposed on the base station of Material Testing Machine main body.
In addition, the biaxial stretch-formed mechanism includes load component 80, which is linked to the cross of Material Testing Machine
Head, and load is applied from crosshead.A pair of 1st mobile member 93 is linked using link component 83 and load component 80, connecting rod
Component 83 includes connecting rod 81 and connecting rod 82.The connecting rod 81 for constituting link component 83 is linked in a swingable manner using axis 97
1st mobile member 93, the connecting rod 82 for constituting link component 83 are linked to load component 80 using axis 85 in a swingable manner.
In addition, a pair of 2nd mobile member 94 is linked using link component 84 and load component 80.One end of link component 84 utilizes axis 98
The 2nd mobile member 94 is linked in such a way that link component 84 can be swung, the other end of link component 84 is using axis 86 with even
The mode that bar component 84 can be swung is linked to load component 80.
In the biaxial stretch-formed mechanism of the Material Testing Machine, in the state for holding test film 100 using two pairs of fixtures 95,96
When lower pushing load component 80, a pair of 1st mobile member 93 is under the action of link component 83 along the 1st guide rail 91 to remote mutually
From direction it is mobile, a pair of 2nd mobile member 94 is under the action of link component 84 along the 2nd guide rail 92 to side away from each other
To movement.Therefore, apply the stretching on mutually orthogonal biaxially oriented to the test film held using two pairs of fixtures 95,96 to bear
Lotus.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2012-32218 bulletin
Summary of the invention
Problems to be solved by the invention
In such previous Material Testing Machine, because being present between the 1st mobile member 93 and axis 97 or link component
Gap between 83 and axis 97 is present in the gap between link component 83 and axis 85 or between load component 80 and axis 85, and
The clearance (loosening) on 91 direction of the 1st guide rail is generated relative to fixture 95.Equally, because being present in the 2nd mobile member 94 and axis 98
Between or the gap between link component 84 and axis 98, be present between link component 84 and axis 86 or load component 80 and axis 86
Between gap, and relative to fixture 96 generate 92 direction of the 2nd guide rail on clearance (loosening).Moreover, in a pair of of fixture 95
The amount of clearance on 1st guide rail, 91 direction, the situation different from the amount of clearance on 92 direction of the 2nd guide rail of a pair of of fixture 96
Under, then it can generate and inappropriate drawing force such problems is applied to test film 100.
Figure 16 is the test knot indicated when having carried out biaxial tension-compression strength using previous Material Testing Machine shown in figure 15
The curve graph of fruit.Here, the horizontal axis in Figure 16 indicates strain (microstrain), the longitudinal axis indicates stress (megapascal (MPa)).In addition, at this
In figure, solid line indicates the strain in 91 direction of the 1st guide rail (X-direction) and the relationship between stress, and dotted line indicates 92 side of the 2nd guide rail
The relationship between strain and stress in (Y-direction).
Test result shown in the figure illustrates the amount of the clearance on 91 direction of the 1st guide rail (X-direction) of a pair of of fixture 95
Greater than the clearance on 92 direction of the 2nd guide rail (Y-direction) of a pair of of fixture 96 amount the case where.At this point, even if in two sides of X, Y
In the case where being applied with test force upwards, it is initially also only applied to Y-direction for the stress of test film 100, in test film 100
The upper normal strain generated along Y-direction.Like this in the case where producing normal strain in the Y-direction of test film 100, it can test
Negative strain is generated in the X-direction of piece 100.Therefore, as shown in figure 16, test film 100 can show temporarily shrinking it in X-direction
Unnatural movement as being extended afterwards.Therefore, it is impossible to properly execute biaxial tension-compression strength, generation can not carry out for
Accurate evaluation of physical properties such problems of test film 100.
The present invention is to be made into order to solve the above problems, can properly be executed pair its purpose is to provide one kind
In the Material Testing Machine of the tension test of test film.
The solution to the problem
In the invention described in technical solution 1, a kind of Material Testing Machine is provided, which includes: that a pair the 1st is moved
Dynamic component, 1st mobile member of a pair by being guided component guidance, so as to along the 1st axis to close to each other and remote
From direction it is mobile；Fixture is linked to the 1st mobile member respectively；A pair of 2nd mobile member, the mobile structure of a pair the 2nd
Part by being guided component guidance, so as to along the 2nd axis with the 1st Axis Cross to close to each other and separate
Direction is mobile；Fixture is linked to the 2nd mobile member respectively；Load component, can be using load mechanism to the load
Component applies load；Four link components, four link components that can be with the swinging axle for being disposed in the load component
Center is disposed in the load component relative to the state that the load component is swung；And link mechanism, by the connecting rod
The end of the side opposite with side locating for the swinging axle of component and the 1st mobile member and the 2nd mobile member connect
Knot, by the way that the load for being applied to the load component is transferred to the pair of 1st mobile structure by four link components
Part and the pair of 2nd mobile member, to make the pair of 1st mobile member along the 1st axis to away from each other
Direction synchronizing moving, also, move the pair of 2nd mobile member to direction away from each other along the 2nd axis, institute
It states Material Testing Machine to be characterized in that, which further includes pretensioning mechanism, and the pretensioning mechanism is not by utilizing
In the state that the load mechanism applies load to the load component, make a pair for being linked to the pair of 1st mobile member
Fixture is moved along the 1st axis to direction away from each other, also, makes to be linked to the one of the pair of 2nd mobile member
Fixture is moved along the 2nd axis to direction away from each other, to apply pre-tensioning to test film.
According to invention described in technical solution 2, on the basis of the invention described in technical solution 1, the pretensioning mechanism
By changing end and the distance between described fixture of the side opposite with side locating for the swinging axle of the link component,
To apply pre-tensioning to the test film.
Invention according to technical solution 3, on the basis of the invention described in technical solution 2, the link mechanism packet
The seat surface for including pin and abutting with the pin, the pretensioning mechanism pass through change the distance between the pin and the fixture, from
And pre-tensioning is applied to the test film.
According to invention described in technical solution 4, on the basis of the invention described in technical solution 3, the 1st mobile member
It include the sliding component for being formed with the seat component and the holding seat component of the seat surface with the 2nd mobile member, it is described
Pretensioning mechanism has the biasing member for keeping the seat component mobile relative to the sliding component.
According to invention described in technical solution 5, on the basis of the invention described in technical solution 1, the pretensioning mechanism
By changing the position of the swinging axle, to apply pre-tensioning to the test film.
According to invention described in technical solution 6, on the basis of the invention described in technical solution 5, the swinging axle is by energy
Enough bearing components moved on the direction that the length direction with the link component intersects are pivotally supported, the pretensioning mechanism packet
The biasing member for pushing the bearing components is included, by making the bearing components edge and the link component using the biasing member
The direction that intersects of length direction it is mobile, to apply pre-tensioning to the test film.
According to invention described in technical solution 7, on the basis of the invention described in technical solution 1, the pretensioning mechanism
By changing the length of the link component, to apply pre-tensioning to the test film.
According to invention described in technical solution 8, on the basis of the invention described in technical solution 7, the link component packet
A pair of of connection sheet is included, which links up by double thread component, which is formed with direction at both ends
The threaded portion of mutual opposite direction, the pretensioning mechanism changed by making the double thread component rotation a pair of of connection sheet it
Between distance, thus to the test film apply pre-tensioning.
The effect of invention
According to invention described in technical solution 1 to technical solution 8, due in the state of not applying load to load component
Pre-tensioning is applied to test film, therefore, can properly execute the drawing for test film by the clearance of elimination fixture
Stretch test.
Detailed description of the invention
Fig. 1 is the synoptic diagram of Material Testing Machine of the invention.
Fig. 2 is the perspective view of biaxial stretch-formed mechanism 1.
Fig. 3 is the explanatory diagram for indicating link component 44 relative to the installation condition of supporting part 41.
Fig. 4 is the perspective view for the state for indicating that pin 45 is abutted with seat component 31.
Fig. 5 is the side view synoptic diagram for the state for indicating that pin 45 is abutted with seat component 31.
Fig. 6 is the side view for indicating the mechanism for keeping a component 31 mobile relative to the 1st sliding component 21, the 2nd sliding component 22
Synoptic diagram.
Fig. 7 is the curve for indicating test result when having carried out biaxial tension-compression strength using Material Testing Machine of the invention
Figure.
Fig. 8 is the synoptic diagram of the pretensioning mechanism 201 of the 2nd embodiment.
Fig. 9 is the synoptic diagram of the pretensioning mechanism 202 of the 3rd embodiment.
Figure 10 is the synoptic diagram of the pretensioning mechanism 203 of the 4th embodiment.
Figure 11 is the synoptic diagram of the pretensioning mechanism 204 of the 5th embodiment.
Figure 12 is the synoptic diagram of the pretensioning mechanism 205 of the 6th embodiment.
Figure 13 is the synoptic diagram of the pretensioning mechanism 206 of the 7th embodiment.
Figure 14 is the synoptic diagram of the pretensioning mechanism 207 of the 8th embodiment.
Figure 15 be indicate in previous Material Testing Machine for applying the biaxial stretch-formed mechanism of test force to test film 100
Perspective view.
Figure 16 is the curve graph for indicating test result when having carried out biaxial tension-compression strength using previous Material Testing Machine.
Specific embodiment
Hereinafter, illustrating embodiments of the present invention with reference to the accompanying drawings.Fig. 1 is the synoptic diagram of Material Testing Machine of the invention.
The Material Testing Machine includes: base station 11；Pair of right and left lead screw 12 is stood up on the base station 11；And ten
Prefix 13 can be gone up and down relative to lead screw 12, and the nut portions including being screwed with pair of right and left lead screw 12.In crosshead
The upper unit 2 of aftermentioned biaxial stretch-formed mechanism 1 is attached on 13.In addition, being attached on base station 11 aftermentioned biaxial stretch-formed
The lower unit 3 of mechanism 1.
It is equipped with the synchronous pulley 15 engaged with synchronous belt 14 respectively in the lower end of a pair of of lead screw 12.In addition, the synchronization
The synchronous pulley 17 also rotated with the driving using motor 16 with 14 engages.Therefore, a pair of of lead screw 12 can be in motor 16
Drive lower synchronous rotary.Moreover, by making a pair of of 12 synchronous rotary of lead screw, so that crosshead 13 is along the axle center side of a pair of of lead screw 12
It ramps up or declines.
Fig. 2 is the perspective view of above-mentioned biaxial stretch-formed mechanism 1.In addition, in fig. 2 it is shown that in biaxial stretch-formed mechanism 1
State after upper unit 2 and the connection of lower unit 3.
The biaxial stretch-formed mechanism 1 includes the 1st guide rail 23 and the 2nd guide rail 24, and the 1st guide rail 23 and the 2nd guide rail 24 are along mutual
Orthogonal direction is disposed in the surface of base portion 26.The base portion 26 for supporting the 1st guide rail 23 and the 2nd guide rail 24 is disposed in shown in Fig. 1
Material Testing Machine main body base station 11 on.
A pair of 1st sliding component 21 is equipped in a manner of it can slide on the 1st guide rail 23.The a pair the 1st slides structure
Part 21 by being guided by the 1st guide rail 23, so as to along 1st axis parallel with the 1st guide rail 23 to close to each other and separate
Direction it is mobile.The 1st sliding component 21 in the 1st sliding component 21 of a pair by load sensor 27 with for holding
The fixture 25 of test film 100 is connected.On the other hand, another the 1st sliding component 21 in a pair of 1st sliding component 21 is direct
It is connected with fixture 25.1st sliding component 21 maintains the aftermentioned seat component 31 for being formed with seat surface 29.As described below, seat structure
Part 31 can be adjusted relative to the position of the 1st sliding component 21 using screw 39.In addition, the 1st sliding component 21 and seat
Component 31 constitutes the 1st mobile member of the invention.
On the other hand, a pair of 2nd sliding component 22 is equipped in a manner of it can slide on the 2nd guide rail 24.The a pair
2nd sliding component 22 by being guided by the 2nd guide rail 24, so as to along 2nd axis parallel with the 2nd guide rail 24 to mutually connecting
It is proximal and distal from direction it is mobile.The 2nd sliding component 22 in the 2nd sliding component 22 of a pair by load sensor 27 with
Fixture 25 is connected.On the other hand, another the 2nd sliding component 22 in a pair of 2nd sliding component 22 directly with 25 phase of fixture
Connection.2nd sliding component 22 is identical as the 1st sliding component 21, maintains a component 31.As described below, seat component 31 relative to
The position of 2nd sliding component 22 can be also adjusted using screw 39.In addition, 31 structure of the 2nd sliding component 22 and seat component
At the 2nd mobile member of the invention.
The 1st guide rail 23, the 2nd guide rail 24, the 1st sliding component 21, the 2nd sliding component 22, seat structure being configured on base portion 26
Part 31, load sensor 27, fixture 25 etc. constitute the lower unit 3 in biaxial stretch-formed mechanism 1.
In addition, the biaxial stretch-formed mechanism 1 includes supporting part 41, which is linked to Fig. 1 institute using coupling member 42
The crosshead 13 for the Material Testing Machine shown.When carrying out aftermentioned biaxial tension-compression strength, applied from crosshead 13 to the supporting part 41
Application of load.It is attached to a pair of of carrying up component 43 in the supporting part 41, is transporting biaxial stretch-formed mechanism 1 or twin shaft drawing using fork truck etc.
A pair of carrying up component 43 is used when stretching the upper unit 2 of mechanism 1.In addition, the supporting part 41 is as load component of the invention
It functions, which applies load by the crosshead 13 as load mechanism.
Four link components 44 are installed on branch respectively to be formed on the state that a pair of joint portion 47 of supporting part 41 clamps
Bearing portion 41.These link components 44 are installed on connector portions 47 by the state that can be swung centered on swinging axle 46.Supporting part 41,
It is constituted in biaxial stretch-formed mechanism 1 with four link components 44 etc. for being installed on the supporting part 41 using connector portions 47 and swinging axle 46
Upper unit 2.
In addition, in the connector portions 47 for supporting four link components 44, corresponding with the 1st sliding component 21 connector portions
Other hole portion 49 for the hole portion penetrated through for swinging axle 46 is equipped on 47.In change for test film 100 mutual
The hole portion 49 is used when the ratio between the test force applied on mutually orthogonal direction.In this case, two in four link components 44
A link component 44 centered on the swinging axle 46 for being installed on hole portion 49 to swing.
Fig. 3 is the explanatory diagram for indicating link component 44 relative to the installation condition of supporting part 41.
As shown in Figures 2 and 3, link component 44 is installed in a swingable manner using connector portions 47 and swinging axle 46
Supporting part 41.Moreover, by abutting the protrusion 48 for the upper end for being formed in link component 44 with the lower surface of supporting part 41, thus
The swing of position limiting rod component 44 indicated by the solid line in Fig. 3.Therefore, as described below, make upper unit 2 and lower part
After unit 3 separates, each link component 44 can be prevented sagging downwards.
Referring again to Fig. 2, pin 45 is equipped near the lower end of each link component 44.The pin 45 is in connection upper unit
2 and when lower unit 3 abutted with the seat surface 29 for being formed in each seat component 31.
Upper unit 2 in biaxial stretch-formed mechanism 1 is installed on the crosshead 13 of Material Testing Machine, in biaxial stretch-formed mechanism 1
Lower unit 3 be attached to the base station 11 of Material Testing Machine.When implementing the biaxial tension-compression strength for test film 100, in Fig. 1
Shown in motor 16 driving under, decline crosshead 13 and the upper unit 2 of biaxial stretch-formed mechanism 1 together, to make top
Pin 45 in unit 2 is abutted with the seat component 31 in lower unit 3.
Fig. 4 is the perspective view for the state for indicating that pin 45 is abutted with seat component 31, and Fig. 5 is the shape that pin 45 is abutted with seat component 31
The side view synoptic diagram of state.
It is respectively formed on by the 1st sliding component 21 and the seat component 31 that keeps of the 2nd sliding component 22 in lower unit 3
There is seat surface 29, which can abut with the pin 45 for being disposed in link component 44 in upper unit 2.The seat surface 29 and pin 45 have
There is corresponding shape.
In the case where crosshead 13 is begun to decline from state shown in FIG. 1, as shown in Figure 4 and Figure 5, it is attached to connecting rod structure
The pin 45 of part 44 is abutted with the upper surface for the seat surface 29 for being formed in a component 31.In the case where crosshead 13 is since the state further
When drop, pin 45 slides on seat surface 29, and as indicated by the solid line in Fig. 5, abuts with the side of seat surface 29.At this point, such as
As being indicated in Fig. 3 with imaginary line, link component 44 is swung centered on swinging axle 46.
Then, when crosshead 13 further declines, the pin 45 abutted with seat surface 29 pushes seat component 31.In the pushing force
Under the action of, a pair of 1st sliding component 21 is guided by the 1st guide rail 23 to mobile to direction away from each other, also, a pair of the
2 sliding components 22 are guided by the 2nd guide rail 24 to mobile to direction away from each other.At this point, the outer peripheral surface of pin 45 and seat component
31 seat surface 29 slides.Apply the drawing on mutually orthogonal biaxially oriented to the test film 100 held by four fixtures 25 as a result,
Stretch load.Moreover, the value of tensile load at this time, i.e. test force can be measured using a pair of of load sensor 27.
When crosshead 13 rises since the state with the upper unit 2 of biaxial stretch-formed mechanism 1 again together, each connecting rod
Component 44 is swung under the action of self-weight, is accompanied by this, and pin 45 leaves the side of seat surface 29.Moreover, if crosshead 13 is further
Rise, due to be formed in a component 31 seat surface 29, the region that is applied because being abutted with pin 45 other than the direction of load at
For opening portion, therefore, pin 45 leaves seat surface 29 with the rising of link component 44.
Fig. 6 is the pretensioning mechanism of the 1st embodiment, is to indicate to make a component 31 relative to the 1st sliding component the 21, the 2nd
The side view synoptic diagram of the mobile mechanism of sliding component 22.
As shown in fig. 6, state of the seat component 31 can be moved relative to the 1st sliding component 21 or the 2nd sliding component 22
It is kept.Moreover, seat component 31 can be by making to be disposed in relative to the position of the 1st sliding component 21 or the 2nd sliding component 22
The screw 39 of 1st sliding component 21 or the 2nd sliding component 22 rotates to adjust.At this point, as described above, passing through the seat of seat component 31
Face 29 is abutted with pin 45, to limit the movement of a component 31.Therefore, make screw 39 to keeping the 1st sliding component 21 or the 2nd sliding
When the direction to become larger face A and the distance between the face B of seat component 31 d of dynamic component 22 rotates, the 1st sliding component 21 or the 2nd is sliding
Dynamic component 22 is mobile to the separate direction of self-marketing 45 (arrow direction in Fig. 6).
Here, the 1st sliding component 21 in a pair of 1st sliding component 21 is by load sensor 27 and 25 phase of fixture
Connection, another the 1st sliding component 21 are directly connected with fixture 25.Therefore, in the 1st sliding component 21 along the 1st guide rail 23
When mobile to arrow direction shown in fig. 6, a pair of of fixture 25 is mobile to direction away from each other.At this point, held by fixture 25
Test film 100 bears tension along 1st axis parallel with the 1st guide rail 23.Equally, one in a pair of 2nd sliding component 22
2nd sliding component 22 is connect by load sensor 27 with fixture 25, another the 2nd sliding component 22 directly connects with fixture 25
It connects.Therefore, when the 2nd sliding component 22 is moved along the 2nd guide rail 24 to arrow direction shown in fig. 6, a pair of of fixture 25 is to mutual
Mutually separate direction is mobile.At this point, the test film 100 held by fixture 25 is born along the 2nd axis parallel with the 2nd guide rail 24
Tension.
Then, illustrate the dynamic of the case where biaxial tension-compression strength for being directed to test film 100 is executed using the biaxial stretch-formed mechanism 1
Make.
When starting test, crosshead 13 shown in FIG. 1 is disposed above.Moreover, as described above, biaxial stretch-formed mechanism 1
In upper unit 2 be installed on the crosshead 13 of Material Testing Machine, the lower unit 3 in biaxial stretch-formed mechanism 1 is attached to material
The base station 11 of testing machine.In this state, since the top of the lower unit 3 in biaxial stretch-formed mechanism 1 is not configured with top
Unit 2, therefore, the top of each fixture 25 in lower unit 3 are open.Thus, it is possible to easily pacify on these fixtures 25
Fill test film 100.When installing the test film 100, even if needing also easily perform the operation using tools such as spanners.
In addition, in this state, in the upper unit 2 in biaxial stretch-formed mechanism 1, as shown in figure 3, due to being formed in link component 44
The protrusion 48 of upper end is abutted with the lower surface of supporting part 41, therefore link component 44 is configured at position indicated by the solid line in Fig. 3.
It completes for test film 100 to be installed on each fixture 25 and to implement the biaxial tension-compression strength for test film 100
When, decline crosshead 13 and the upper unit 2 of biaxial stretch-formed mechanism 1 together, thus
Abut the pin 45 in upper unit 2 with the seat component 31 in lower unit 3.Here, temporarily ceasing the decline of crosshead 13.
When since the state declining further upper unit 2, being acted on biaxially oriented test film 100 has drawing
Stretch.However, in the case where producing clearance (loosening) in the transmission system of the power in self-supporting portion 41 to each fixture 25, such as
Shown in Figure 16, sometimes test film 100 show to be extended after temporarily shrinking to X-direction as unnatural movement.Cause
This, can not properly execute biaxial tension-compression strength, generate can not carry out for test film 100 accurate evaluation of physical properties this
The problem of sample.
Therefore, as described above, by making screw 39 shown in fig. 6 to making the 1st sliding component 21 or the 2nd sliding component 22
The direction that the distance between face A and the face B of seat component 31 d become larger rotates, to make fixture 25 to making the distance between fixture 25
The direction to become larger is mobile, and applies pre-tensioning to test film 100.At this point, since test film 100 is from mutually orthogonal twocouese
It is applied pre-tensioning, therefore, by revolving four screws 39 of the 1st sliding component 21 of a pair and a pair of 2nd sliding component 22
The position of four fixtures 25 of adjustment is transferred, to ensure not apply unbalanced pre-tensioning to test film 100.In the adjustment,
It can also be adjusted referring to the signal of load sensor 27.In addition, in Fig. 6, instead of as the pushing for pushing seat component 31
The screw 39 of component can also be applied used as the voussoir of biasing member, and in such a way that the distance between face A and face B d become larger
Add pre-tensioning.In addition, pre-tensioning described herein refers to before executing biaxial tension-compression strength to the application of test film 100
Initial tensile load.
After eliminating clearance (loosening) of the self-supporting portion 41 to the transmission system of the power of each fixture 25, starts twin shaft and draw
Stretch test.At this point, declining crosshead 13 further, seat component 31 is pushed using the pin 45 abutted with seat surface 29.In the pushing
Under the action of power, a pair of 1st sliding component 21 is guided and mobile to direction away from each other by the 1st guide rail 23, also, a pair of the
2 sliding components 22 are by the guidance of the 2nd guide rail 24 and mobile to direction away from each other.Examination to being held by four fixtures 25 as a result,
It tests piece 100 and applies tensile load on mutually orthogonal biaxially oriented.Moreover, the value of tensile load at this time, i.e. test force benefit
It is measured with a pair of of load sensor 27.
Fig. 7 is the curve for indicating test result when having carried out biaxial tension-compression strength using Material Testing Machine of the invention
Figure.Here, the horizontal axis in Fig. 7 indicates strain (microstrain), the longitudinal axis indicates stress (megapascal (MPa)).In addition, in Fig. 7, solid line
Indicate the strain on 23 direction of the 1st guide rail (X-direction) and the relationship between stress, dotted line indicates 24 direction of the 2nd guide rail (Y-direction)
On strain and stress between relationship.
As shown in fig. 7, no matter in X-direction or in the Y direction, straining with the stress for being applied to test film 100
Increase and increases.Thus, it can be understood that such test film 100 shown in Figure 16 can be eliminated not in the testing of materials
Naturally movement, can properly implement the biaxial tension-compression strength for test film 100.
When biaxial tension-compression strength is completed, make the upper unit 2 of crosshead 13 and biaxial stretch-formed mechanism 1 together again on
It rises.When upper unit 2 rises, each link component 44 is swung because of self weight, is accompanied by this, and pin 45 leaves the side of seat surface 29.
Moreover, if crosshead 13 is further up, due to be formed in a component 31 seat surface 29, be applied because being abutted with pin 45 it is negative
Region other than the direction of lotus becomes opening portion, and therefore, pin 45 leaves seat surface 29 with the rising of link component 44.At this point,
As shown on the solid line in figure 3, the swing of link component 44 is under the protrusion 48 and supporting part 41 for being formed in 44 upper end of link component
The position that surface abuts stops.Therefore, the hunting range of link component 44 can be maintained within constant range, can be prevented
Link component 44 is sagging.
As shown in Figure 1, test film 100 is removed from fixture 25 when crosshead 13 is configured at lifting position again.This
When, since the top of each fixture 25 in the lower unit 3 of biaxial stretch-formed mechanism 1 is open, it can be easily by test
Piece 100 is removed from fixture 25.
In the above-described embodiment, using following pretensioning mechanism, it may be assumed that by using being disposed in link component 44
Pin 45, the seat component 31, the 1st sliding component 21, the 2nd sliding component 22 that include the seat surface 29 abutted with the pin 45, and make
1st sliding component 21, the 2nd sliding component 22 and seat component 31 relatively move to change the distance between pin 45 and fixture 25, from
And pre-tensioning is applied to test film 100.However, the pretensioning mechanism as the distance between change pin 45 and fixture 25, also
It can be using other structures.
Fig. 8 is the synoptic diagram of the pretensioning mechanism 201 of the 2nd embodiment.In addition, in fig. 8, by the 1st sliding component 21
Or the 2nd sliding component 22 and fixture 25 directly linked up using pretensioning mechanism 201, the case where load sensor 27 are arranged
Under, which is disposed between the 1st sliding component 21 or the 2nd sliding component 22 and pretensioning mechanism 201 or is matched
Between fixture 25 and pretensioning mechanism 201.
The pretensioning mechanism 201 has the following structure: will be attached to the 1st sliding component 21 or the 2nd using a pair of screws 113
The side view of sliding component 22 connects in the coupling member 112 of crosswise with the coupling member 111 with recess portion for being attached to fixture 25
Knot gets up.The recess portion of the top insertion for coupling member 112 is formed on coupling member 111.In the pretensioning mechanism 201
In, by rotating a pair of screws 113, to change pin 45 and the folder for being linked to the 1st sliding component 21 or the 2nd sliding component 22
The distance between tool 25, thereby, it is possible to apply pre-tensioning to test film 100.
Fig. 9 is the synoptic diagram of the pretensioning mechanism 202 of the 3rd embodiment.In addition, utilizing pretensioning mechanism in Fig. 9
202 directly link up the 1st sliding component 21 or the 2nd sliding component 22 with fixture 25, in the feelings that load sensor 27 is arranged
Under condition, which is disposed between the 1st sliding component 21 or the 2nd sliding component 22 and pretensioning mechanism 202 or
It is configured between fixture 25 and pretensioning mechanism 202.
The pretensioning mechanism 202 has the following structure: will be attached to the 1st sliding component 21 or the 2nd using a pair of screws 116
The coupling member 115 of the T-shaped of sliding component 22 and be attached to fixture 25, with the shape for being surrounded coupling member 115
The coupling member 114 of shape links up.In the pretensioning mechanism 202, by rotating a pair of screws 116, to change pin
45 be linked to the distance between the 1st sliding component 21 or fixture 25 of the 2nd sliding component 22, thereby, it is possible to test film 100
Apply pre-tensioning.
Figure 10 is the synoptic diagram of the pretensioning mechanism 203 of the 4th embodiment.In addition, utilizing pretensioning mechanism in Figure 10
203 directly link up the 1st sliding component 21 or the 2nd sliding component 22 with fixture 25, in the feelings that load sensor 27 is arranged
Under condition, which is disposed between the 1st sliding component 21 or the 2nd sliding component 22 and pretensioning mechanism 203 or
It is disposed between fixture 25 and pretensioning mechanism 203.
The pretensioning mechanism 203 has the screw 116 for replacing the 3rd embodiment shown in Fig. 9 and uses voussoir 117
Structure.In the pretensioning mechanism 203 of the 4th embodiment, by changing the size of a pair of of voussoir 117, to change pin 45
Be linked to the distance between the 1st sliding component 21 or fixture 25 of the 2nd sliding component 22, thereby, it is possible to apply to test film 100
Add pre-tensioning.
Figure 11 is the synoptic diagram of the pretensioning mechanism 204 of the 5th embodiment.In addition, utilizing pretensioning mechanism in Figure 11
204 directly link up the 1st sliding component 21 or the 2nd sliding component 22 with fixture 25, in the feelings that load sensor 27 is arranged
Under condition, which is disposed between the 1st sliding component 21 or the 2nd sliding component 22 and pretensioning mechanism 204 or
It is disposed between fixture 25 and pretensioning mechanism 204.
The pretensioning mechanism 204 is double with being equipped between the 1st sliding component 21 or the 2nd sliding component 22 and fixture 25
The structure of screw member 118, the double thread component 118 are formed at both ends towards the threaded portion of mutual opposite direction 119,120.
A threaded portion 119 and the 1st sliding component 21 or the 2nd sliding component 22 in double thread component 118 are screwed, another spiral shell
Line portion 120 and fixture 25 are screwed.In the pretensioning mechanism 204, by making double thread component 118 centered on its axle center
Rotation, to change pin 45 and be linked to the distance between the 1st sliding component 21 or fixture 25 of the 2nd sliding component 22, as a result,
Pre-tensioning can be applied to test film 100.
Figure 12 is the synoptic diagram of the pretensioning mechanism 205 of the 6th embodiment.
In above-mentioned the 1st embodiment~the 5th embodiment, using by change pin 45 and fixture 25 between away from
From the structure to apply pre-tensioning to test film 100.In contrast, in the pretensioning mechanism 205 of the 6th embodiment
In, using the position of the swinging axle 46 for the oscillation center for becoming link component 44 by change, to apply to test film 100
The structure of pre-tensioning.
That is, swinging axle 46 is pivotally supported by bearing components 61 in the pretensioning mechanism 205.The bearing components 61 are with can
The mode moved along the vertical direction is supported on supporting part 41 by sliding component 62.In addition, in bearing components 61 and supporting part 41
Spring 72 is equipped between flange part 71.Moreover, being equipped with the screw 63 for pushing bearing components 61 on supporting part 41.It is pre- at this
In strainer 205, by rotating screw 63, to make bearing components 61 and swinging axle 46, side is mobile downwardly together, as a result,
Pre-tensioning can be applied to test film 100.Furthermore it is also possible to omit above-mentioned spring 72.Furthermore it is also possible to the generation in Figure 12
Apply pre-tensioning using the voussoir being disposed between supporting part 41 and bearing components 61 for screw 63.
Figure 13 is the synoptic diagram of the pretensioning mechanism 206 of the 7th embodiment.
In the pretensioning mechanism 206 of the 7th embodiment, also with the pre-tensioner machine of the 6th embodiment shown in Figure 12
Structure 205 is identical, using the position of the swinging axle 46 for the oscillation center for becoming link component 44 by change, thus to test film
100 apply the structure of pre-tensioning.
That is, swinging axle 46 is also pivotally supported by bearing components 61 in the pretensioning mechanism 206.The bearing components 61 are with energy
Enough modes moved in the horizontal direction are supported on supporting part 41 by sliding component 62.In addition, in bearing components 61 and supporting part 41
Flange part 74 between be equipped with spring 72.Moreover, being equipped in the vertical portion 73 of supporting part 41 for pushing bearing components
61 screw 63.In the pretensioning mechanism 206, by rotating screw 63, to make bearing components 61 and swinging axle 46 1
It rises to side movement, thereby, it is possible to apply pre-tensioning to test film 100.Furthermore it is also possible to omit above-mentioned spring 72.Separately
Outside, can also applied using the voussoir being disposed between supporting part 41 and bearing components 61 pre- in Figure 13 instead of screw 63
Tensile force.
Figure 14 is the synoptic diagram of the pretensioning mechanism 207 of the 8th embodiment.
In the pretensioning mechanism 207 of the 8th embodiment, not with above-mentioned the 1st embodiment~the 7th embodiment
Together, apply the structure of pre-tensioning to test film 100 using the length by change link component 44.
In the pretensioning mechanism 207, link component 44 includes a pair of of connection sheet 65,66.Moreover, in the pretensioning mechanism
In 207, there is the structure that double thread component 67 is equipped between connection sheet 65 and connection sheet 66, the double thread component 67 is two
End is formed with towards the threaded portion of mutual opposite direction 68,69.A threaded portion 68 and connection sheet 65 in double thread component 67
It is screwed, another threaded portion 69 and connection sheet 66 are screwed.In the pretensioning mechanism 207, by making double thread structure
Part 67 is rotated centered on its axle center, to change the distance between connection sheet 65 and connection sheet 66, and then changes link component
44 length.Using the effect, make double thread component 67 to the direction for making the distance between connection sheet 65 and connection sheet 66 become larger
Rotation, so as to apply pre-tensioning to test film 100.
In addition, in the above-described embodiment, illustrating to be disposed in base portion 26 by using along mutually orthogonal direction
Surface the 1st guide rail 23 and the 2nd guide rail 24 make a pair of 1st sliding component 21 and the 2nd sliding component 22 to mutually orthogonal side
To movement, thereby executing drawing force test film 100 applied on orthogonal direction biaxial tension-compression strength the case where, but into
It also can be with the application of the invention, the Material Testing Machine configures on the direction of intersection in the Material Testing Machine of row triaxial extension test
1 guide rail 23 and the 2nd guide rail 24, in addition, configuration the 3rd is led on the direction further intersected with the 1st guide rail 23, the 2nd guide rail 24
Rail slides the 3rd sliding component for being linked to fixture along the 3rd guide rail, to apply in three axis directions to test film 100
Drawing force.Additionally it should of the invention, additionally it is possible to carry out the material examination for applying the drawing force of four axis directions or more to test film 100
It tests.
Description of symbols
1, biaxial stretch-formed mechanism；2, upper unit；3, lower unit；11, base station；12, lead screw；13, crosshead；16, horse
It reaches；21, the 1st sliding component；22, the 2nd sliding component；23, the 1st guide rail；24, the 2nd guide rail；25, fixture；26, base portion；27, it bears
Lotus sensor；29, seat surface；31, seat component；39, screw；41, supporting part；44, link component；45, it sells；46, swinging axle；47,
Connector portions；48, protrusion；61, bearing components；62, sliding component；63, screw；65, connection sheet；66, connection sheet；67, double thread
Component；100, test film；111, coupling member；112, coupling member；113, screw；114, coupling member；115, coupling member；
116, screw；117, voussoir；118, double thread component；201, pretensioning mechanism；202, pretensioning mechanism；203, pre-tensioner machine
Structure；204, pretensioning mechanism；205, pretensioning mechanism；206, pretensioning mechanism；207, pretensioning mechanism.
Claims (8)
1. a kind of Material Testing Machine, the Material Testing Machine include:
A pair of 1st mobile member, 1st mobile member of a pair by being guided component guidance, so as to along the 1st axis to
Direction close to each other and separate is mobile；
Fixture is linked to the 1st mobile member respectively；
A pair of 2nd mobile member, 2nd mobile member of a pair is by being guided component guidance, so as to along with the described 1st
2nd axis of Axis Cross is mobile to direction close to each other and separate；
Fixture is linked to the 2nd mobile member respectively；
Load component can apply load to the load component using load mechanism；
Four link components, four link components by can centered on the swinging axle for being disposed in the load component relative to
The state that the load component is swung is disposed in the load component；And
Link mechanism moves the end of the side opposite with side locating for the swinging axle of the link component and the described 1st
Dynamic component and the 2nd mobile member connection,
By the way that the load for being applied to the load component is transferred to the pair of 1st mobile structure by four link components
Part and the pair of 2nd mobile member, to make the pair of 1st mobile member along the 1st axis to away from each other
Direction synchronizing moving, also, move the pair of 2nd mobile member to direction away from each other along the 2nd axis, institute
Material Testing Machine is stated to be characterized in that,
The Material Testing Machine further includes pretensioning mechanism, and the pretensioning mechanism using the load mechanism to described by not born
In the state that lotus component applies load, make to be linked to a pair of of fixture of the pair of 1st mobile member along the 1st axis to
Direction away from each other is mobile, also, makes a pair of of the fixture for being linked to the pair of 2nd mobile member along the 2nd axis
It is mobile to direction away from each other, to apply pre-tensioning to test film.
2. Material Testing Machine according to claim 1, wherein
The pretensioning mechanism by change the link component the side opposite with side locating for the swinging axle end with
The distance between described fixture, to apply pre-tensioning to the test film.
3. Material Testing Machine according to claim 2, wherein
The link mechanism includes pin and the seat surface that abuts with the pin,
The pretensioning mechanism is by change the distance between the pin and the fixture, to apply pre- to the test film
Clamp force.
4. Material Testing Machine according to claim 3, wherein
1st mobile member and the 2nd mobile member include the seat component and the holding seat for being formed with the seat surface
The sliding component of component,
The pretensioning mechanism has the biasing member for keeping the seat component mobile relative to the sliding component.
5. Material Testing Machine according to claim 1, wherein
The pretensioning mechanism is by changing the position of the swinging axle, to apply pre-tensioning to the test film.
6. Material Testing Machine according to claim 5, wherein
The bearing components axis branch that the swinging axle can be moved on the direction that the length direction with the link component intersects
It holds,
The pretensioning mechanism includes the biasing member for pushing the bearing components, by making the bearing using the biasing member
Component is moved along the direction that the length direction with the link component intersects, to apply pre-tensioning to the test film.
7. Material Testing Machine according to claim 1, wherein
The pretensioning mechanism is by changing the length of the link component, to apply pre-tensioning to the test film.
8. Material Testing Machine according to claim 7, wherein
The link component includes a pair of of connection sheet, which links up by double thread component, the double thread structure
Part is formed with the threaded portion towards mutual opposite direction at both ends,
The pretensioning mechanism changes the distance between a pair of of connection sheet by making the double thread component rotation, thus to institute
It states test film and applies pre-tensioning.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2014/062854 WO2015173915A1 (en) | 2014-05-14 | 2014-05-14 | Material testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106461520A CN106461520A (en) | 2017-02-22 |
| CN106461520B true CN106461520B (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201480078853.5A Active CN106461520B (en) | 2014-05-14 | 2014-05-14 | Material Testing Machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9995664B2 (en) |
| EP (1) | EP3144661B1 (en) |
| JP (1) | JP6110025B2 (en) |
| CN (1) | CN106461520B (en) |
| WO (1) | WO2015173915A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6172041B2 (en) * | 2014-05-13 | 2017-08-02 | 株式会社島津製作所 | Material testing machine |
| US10969313B2 (en) * | 2016-06-10 | 2021-04-06 | Magna Exteriors Inc. | Fixture for testing the shear performance of microcellular-foamed thermoplastic composite welds |
| JP6610462B2 (en) * | 2016-07-27 | 2019-11-27 | 株式会社島津製作所 | Material testing machine |
| JP7180572B2 (en) * | 2019-09-17 | 2022-11-30 | 株式会社島津製作所 | material testing machine |
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- 2014-05-14 US US15/305,129 patent/US9995664B2/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3144661A4 (en) | 2017-11-08 |
| JP6110025B2 (en) | 2017-04-05 |
| WO2015173915A1 (en) | 2015-11-19 |
| EP3144661B1 (en) | 2021-02-24 |
| US20170045431A1 (en) | 2017-02-16 |
| US9995664B2 (en) | 2018-06-12 |
| JPWO2015173915A1 (en) | 2017-04-20 |
| CN106461520A (en) | 2017-02-22 |
| EP3144661A1 (en) | 2017-03-22 |
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